Correct the argument separator for a Dial statement in pbx_dundi.

Closes issue #10483, patch by lunn


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@79888 65c4cc65-6c06-0410-ace0-fbb531ad65f3

pbx/pbx_dundi.c

@@ -4530,7 +4530,7 @@ static int dundi_exec(struct ast_channel *chan, const char *context, const char
 	if (x < res) {
 		/* Got a hit! */
 		dundiargs = pbx_builtin_getvar_helper(chan, "DUNDIDIALARGS");
-		snprintf(req, sizeof(req), "%s/%s||%s", results[x].tech, results[x].dest, 
+		snprintf(req, sizeof(req), "%s/%s,,%s", results[x].tech, results[x].dest, 
 			S_OR(dundiargs, ""));
 		dial = pbx_findapp("Dial");
 		if (dial)